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+---
+layout: post
+title: "Updated baseline standards for Windows targets"
+author: Chris Denton on behalf of the Compiler Team
+---
+
+The minimum requirements for Tier 1 toolchains targeting Windows will increase with the 1.78 release (scheduled for May 02, 2024).
+Windows 10 will now be the minimum supported version for the `*-pc-windows-*` targets.
+These requirements apply both to the Rust toolchain itself and to binaries produced by Rust.
+
+Two new targets have been added with Windows 7 as their baseline: `x86_64-win7-windows-msvc` and `i686-win7-windows-msvc`.
+They are starting as Tier 3 targets, meaning that the Rust codebase has support for them but we don't build or test them automatically.
+Once these targets reach Tier 2 status, they will be available to use via rustup.
+
+## Affected targets
+
+- `x86_64-pc-windows-msvc`
+- `i686-pc-windows-msvc`
+- `x86_64-pc-windows-gnu`
+- `i686-pc-windows-gnu`
+- `x86_64-pc-windows-gnullvm`
+- `i686-pc-windows-gnullvm`
+
+## Why are the requirements being changed?
+
+Prior to now, Rust had Tier 1 support for Windows 7, 8, and 8.1 but these targets no longer meet our requirements.
+In particular, these targets could no longer be tested in CI which is required by the [Target Tier Policy](https://doc.rust-lang.org/rustc/target-tier-policy.html#tier-1-target-policy) and are not supported by their vendor.